# -*- coding: utf-8 -*-

# Scrapy settings for url_crawler project
#
# For simplicity, this file contains only settings considered important or
# commonly used. You can find more settings consulting the documentation:
#
#     http://doc.scrapy.org/en/latest/topics/settings.html
#     http://scrapy.readthedocs.org/en/latest/topics/downloader-middleware.html
#     http://scrapy.readthedocs.org/en/latest/topics/spider-middleware.html
# -------------------------------------------------user parameter set----------------------------------------------------
# 初始url种子
start_urls = []
# 初始抽取规则
start_rule = []
# 爬虫的唯一ID,用于爬取的网站分配便于扩展
# ID 1 为正在运行id ，0 为测试爬虫id
#MY_CRAWLER_ID = 1
MY_CRAWLER_ID = 1

# Mysql config
DB_HOST ='rm-wz9949ft8e8iy626kfo.mysql.rds.aliyuncs.com'
DB_PORT = 3306
DB_USER = 'root'
DB_PASSWORD = 'Xxb13981101105'
DB_NAME = 'cmi'
DB_CHARSET = 'UTF8'

# Redis config
REDIS_HOST = '47.112.19.70'
REDIS_PORT = 6379
REDIS_PASS = 'cs.Swust'
# DB 1 为正在运行 ，0 为测试
#REDIS_DB = 1
REDIS_DB = 2
# ---------------------------------------------------end---------------------------------------------------------

# -------------------------------------------------system parameter set------------------------------------------

BOT_NAME = 'url_crawler'
SPIDER_MODULES = ['url_crawler.spiders']
NEWSPIDER_MODULE = 'url_crawler.spiders'

DOWNLOADER_MIDDLEWARES = {
    'url_crawler.contrib.downloadmiddleware.custom_download_middleware.CustomUserAgentsMiddleware': 400,
    'scrapy.downloadmiddleware.useragent.UserAgentMiddleware': None,
}


DOWNLOAD_TIMEOUT = 60
DUPEFILTER_DEBUG = True
#重定向最大次数
REDIRECT_MAX_TIMES = 2
REDIRECT_ENABLED = True
COOKIES_ENABLED = False
DOWNLOAD_DELAY = 0.25
MYEXT_ENABLED = True
#-----------------------------------------------------end---------------------------------------------------------
# Crawl responsibly by identifying yourself (and your website) on the user-agent
#USER_AGENT = 'url_crawler (+http://www.yourdomain.com)'

# Configure maximum concurrent requests performed by Scrapy (default: 16)
#CONCURRENT_REQUESTS=32

# Configure a delay for requests for the same website (default: 0)
# See http://scrapy.readthedocs.org/en/latest/topics/settings.html#download-delay
# See also autothrottle settings and docs
#DOWNLOAD_DELAY=3
# The download delay setting will honor only one of:
CONCURRENT_REQUESTS_PER_DOMAIN = 16
CONCURRENT_REQUESTS_PER_IP = 16

# Disable cookies (enabled by default)
#COOKIES_ENABLED=False

# Disable Telnet Console (enabled by default)
#TELNETCONSOLE_ENABLED=False

# Override the default request headers:
#DEFAULT_REQUEST_HEADERS = {
#   'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
#   'Accept-Language': 'en',
#}

# Enable or disable spider middlewares
# See http://scrapy.readthedocs.org/en/latest/topics/spider-middleware.html
#SPIDER_MIDDLEWARES = {
#    'url_crawler.middlewares.MyCustomSpiderMiddleware': 543,
#}

# Enable or disable downloader middlewares
# See http://scrapy.readthedocs.org/en/latest/topics/downloader-middleware.html
#DOWNLOADER_MIDDLEWARES = {
#    'url_crawler.middlewares.MyCustomDownloaderMiddleware': 543,
#}

# Enable or disable extensions
# See http://scrapy.readthedocs.org/en/latest/topics/extensions.html
EXTENSIONS = {
    'url_crawler.contrib.extension.isearch_extension.SpiderOpenCloseLogging': 500,
}

# Configure item pipelines
# See http://scrapy.readthedocs.org/en/latest/topics/item-pipeline.html
#ITEM_PIPELINES = {
#    'url_crawler.pipelines.SomePipeline': 300,
#}

# Enable and configure the AutoThrottle extension (disabled by default)
# See http://doc.scrapy.org/en/latest/topics/autothrottle.html
# NOTE: AutoThrottle will honour the standard settings for concurrency and delay
AUTOTHROTTLE_ENABLED=True
# The initial download delay
AUTOTHROTTLE_START_DELAY=5
# The maximum download delay to be set in case of high latencies
AUTOTHROTTLE_MAX_DELAY=60
# Enable showing throttling stats for every response received:
AUTOTHROTTLE_DEBUG=False

# Enable and configure HTTP caching (disabled by default)
# See http://scrapy.readthedocs.org/en/latest/topics/downloader-middleware.html#httpcache-middleware-settings
#HTTPCACHE_ENABLED=True
#HTTPCACHE_EXPIRATION_SECS=0
#HTTPCACHE_DIR='httpcache'
#HTTPCACHE_IGNORE_HTTP_CODES=[]
#HTTPCACHE_STORAGE='scrapy.extensions.httpcache.FilesystemCacheStorage'
